@book{828441,
	author = {Danchai Kreungngern, Anek Hale, Boonyakrit Rattanapun },
	title = {Determination ursolic acid and antioxidantin Grass jelly (Mesona procumbens Hemsley.) },
	url = {https://www.tci-thaijo.org/index.php/fabjournal/article/view/77369/62059}
}